Cisco 6500 - Catalyst Series 10 Gigabit EN Interface Module Expansion, Configuration Manual, Page: 478 / 742

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Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
OL-20748-01
Chapter 22 Applying Application Layer Protocol Inspection
HTTP Inspection
f.
(Optional) To match text found in the HTTP request message header, or to restrict the count or length
of the header, enter the following command:
hostname(config-cmap)# match [ not ] request header {[ field ]
[
regex
[ regex_name |
class
regex_class_name ]] |
[ length gt max_length_bytes | count gt max_count_bytes ]}
Where the field is the predefined message header keyword. The regex regex_name argument is the
regular expression you created in Step 1 . The class regex_class_name is the regular expression class
map you created in Step 2 . The length gt max_bytes is the maximum message body length in bytes.
The count gt max_count is the maximum number of header fields.
g.
(Optional) To match text found in the HTTP request message method, enter the following command:
hostname(config-cmap)# match [ not ] request method {[ method ] |
[ regex [ regex_name | class regex_class_name ]]
Where the method is the predefined message method keyword. The regex regex_name argument is
the regular expression you created in Step 1 . The class regex_class_name is the regular expression
class map you created in Step 2 .
h.
(Optional) To match text found in the HTTP request message URI, enter the following command:
hostname(config-cmap)# match [ not ] request uri { regex [ regex_name | class
regex_class_name ] |
length gt
max_bytes }
Where the regex regex_name argument is the regular expression you created in Step 1 . The class
regex_class_name is the regular expression class map you created in Step 2 . The length gt
max_bytes is the maximum message body length in bytes.
i.
(Optional) To match text found in the HTTP response message body, or to comment out Java applet
and Active X object tags in order to filter them, enter the following command:
hostname(config-cmap)#
match
[
not
]
response body
{[
active-x
] | [
java-applet
] |
[ regex [ regex_name | class regex_class_name ]] | length gt max_bytes }
Where the regex regex_name argument is the regular expression you created in Step 1 . The class
regex_class_name is the regular expression class map you created in Step 2 . The length gt
max_bytes is the maximum message body length in bytes.
j.
(Optional) To match text found in the HTTP response message header, or to restrict the count or
length of the header, enter the following command:
hostname(config-cmap)# match [ not ] response header {[ field ]
[ regex [ regex_name | class regex_class_name ]] |
[
length gt
max_length_bytes |
count gt
max_count ]}
Where the field is the predefined message header keyword. The regex regex_name argument is the
regular expression you created in Step 1 . The class regex_class_name is the regular expression class
map you created in Step 2 . The length gt max_bytes is the maximum message body length in bytes.
The count gt max_count is the maximum number of header fields.
k.
(Optional) To match text found in the HTTP response message status line, enter the following
command:
hostname(config-cmap)#
match
[
not
]
response status-line
{
regex
[ regex_name |
class
regex_class_name ]}
Where the regex regex_name argument is the regular expression you created in Step 1 . The class
regex_class_name is the regular expression class map you created in Step 2 .
Step 4
Create an HTTP inspection policy map, enter the following command:
hostname(config)# policy-map type inspect http policy_map_name